assertFileExists()

assertFileExists(string $filename[, string $message = ''])

当 $filename 所指定的文件不存在时报告错误，错误讯息由 $message 指定。

assertFileNotExists() 是与之相反的断言，接受相同的参数。

例 A.23: assertFileExists() 的用法

<?php
use PHPUnit\Framework\TestCase;
 
class FileExistsTest extends TestCase
{
    public function testFailure()
    {
        $this->assertFileExists('/path/to/file');
    }
}
?>

phpunit FileExistsTest
PHPUnit 6.5.0 by Sebastian Bergmann and contributors.
 
F
 
Time: 0 seconds, Memory: 4.75Mb
 
There was 1 failure:
 
1) FileExistsTest::testFailure
Failed asserting that file "/path/to/file" exists.
 
/home/sb/FileExistsTest.php:6
 
FAILURES!
Tests: 1, Assertions: 1, Failures: 1.